TheBird

Simple question, is this the same transmission? Is it controlled by the DME or a separate brain? Anyone got some idea on this?

The reason I ask is I am considering swapping a 2.7 from a 986 tiptronic with e-gas into a 2001 996 tiptronic. I have a DME that came with the 2.7 engine as well. I assume the same model DME (7.2) has the same pin out and harness connectors. I know the engine harness needs to swap across from the 3.4.

Any light on this swap is VERY welcome.

Cheers;

The Bird (homage to the RUF CTR Yellow Bird)

Porschetech3

Both the 986.1 and 996.1 uses the ZF 5hp19 transmission. The 986.1 uses a 5hp19FL and the 996.1 uses a 5hp19HL which mounts and turns in the opposite direction. They both share many internals and rebuilt parts but are obviously not interchangeable. They both use a separate controller/computor to operate the transmission.

Byprodriver

As long as the 2.7L is 2000-2001 it will install & run without changing the DME. You will lose ALOT of low rpm torque, the throttle body will be facing the wrong way unless you use the 996 intake manifold which will reduce torque further, & require drilling mounting holes into the heads. Someone in the 996 forum installed a 3.2L engine into a 996 a year or so ago, search there for more info & consider getting a 3.2. Better torque & resale value. Below is a 2000 3.2 for visual aid of component location.

Brian in Tucson

Looks like there's a difference in opinion. I would suggest checking with an Indy Porsche shop. I sure don't know the answer.

BTW, the picture above has an engine that's wired for a standard trans. The harness for the Tip is very different. And the vacuum lines are somewhat different. I'm currently doing the engine wiring swap on an 01 to make a standard wired engine into one that's set up for a tip. Scary indeed!

Brian in Tucson

Does that mean that the 996 engine spins counter clockwise? Why would anyone put a 2.7 in a car that came with a 3.4?

Porschetech3

No.Both engine turn clockwise, but the 996 engine/transmission is mounted backwards as compared to the 986, Therfore the transmissions(996 compared to 986) have the same input turning direction, but opposite output turning directions.

The reason someone would put a 2.7 into a 996 is because a 2.7 is about 1/3 the price of a 3.4.